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' ltdedtates @tutti @was JAMES B. CLEVELAND AND HENRY c. GILDERSLEIN, orHACK- ENsAcIeNEW JERSEY. r

Lam Patent No. 92,424, ma .my 13, 186e.

MPROVEMENT MACHINE FOR SETTING, FITTING, AND TEMPERING- SPRING-PLATES.

The Schedule 'referred to.in these Letters Patent and making part cf thesame.

.nature of our invention, andlt'hese who are acquainted with themanufacture of carriage or elli ptio springs be enabled to construct thesame, we will describe it as follows, to wit:

Figure 1 isla perspective drawing of that portion of our apparatusemployed for setting, shaping, and tempering the backs or bed-platescfcarriage-or elliptic springs.

A is auadjustabledie, formed of two pieces, and separated by two or morescrew-bolts s s, to allow the water to be poured upon themetallicback-plate N, while being formed andheld into shape between the ilangesfr fr of the movable die A and stationary die or bed A, which is alsomade in two separate longitudinal plates, to be opened or closed by thesetscrews s's, to correspond with and receive any desirable width of.back-piates N, between the gflanges the stationary L is a foot-lever,or treadlle'-, whihlrgoperates tue adjustable or upper die A, a dhcldsahe same firmly upon the back-plate N'duiirg` Vtpeprpcess ofshaping and tempering said hack N., ,1

Figure 2 represents a perspsctiiic view of lthat portion oi' ourinvention employed to; lit the lesser plates or lifts of the spring tothe bapltsypr iarger plates, by first placing the bottom or first littlupon the back N, already shaped and tempered, as shown at fig. 1, thenpassing the two together thrbugh the rollers It It', Y

which shape the lift-plate to correspond with and iit upon the back N:

The lower roller R moves in a 'vertical slot, up or down, when operatedby means of the foot-lever or treadlc M.

The plates and lifts are placedlupon the vertical pillars 1, 2, 3, 4,and 5, which are'so arranged that the pillar 3 is suiiiciently elevatedto, support thc curved plates, and prevent their springing Cuit of shapewhen pressed uponv by the upper section o of the plate or lift-temperingmachine. -l l The adjustable head o is also made Iwith an opening oropenings to allow the water topass thronghjit on the plate or lift N. li, am L This adjustable head or fall o isfope'rated byI a footl ir iwhile holding them into shape upon the backs N, or

next llarger plates or'lifts, by-.meaus of projecting flanges u u, whichmay be either upon the top of the stationary supports or pillars 1, 2,3, 4, 5, or upon ltheadjustable bearings, as shown in the drawings, forholding the plates into shape while tempering the 'same for use.

P is a parallel horizontal press operated by the lever e, to straightenthe sides or broad surfaces of the spring-,plates N N. i

Also the vertical lever-presse is employed to straighten the edges ofthe plates when operated by any suitable power.

We do not confine ourselves to' any length of plates, as our dies orpresses are made to be adapted tothe different lengths and widths ofspring-plates.

'lhe superiority of the above mode of forming and fitting the plates inpresses or dies, and tempering y said plates while in the dies, therebyrendering them ready for use, without using the edge of the hammer tobring them into shape, thus saving the time required to grind out thehammer-marks, as is the case when the backs and lifts are tempered bythe old mode is evident hence we are enabled to fit, set, and temper asmany plates in two hours as would require the labor of one man for tenhours by the old process.

We do not claim to have invented adjustable beds composed of verticalbars or strips, for the purpose ot'- forming carri-age or ellipticsprings; neither do we claim concave beds, provided with grooves for thereception of water by means 'of injecting-tubes, or any 1 other devicethat will keep the centre or middle of the plate or lift submerged inwater while the ends of the plate arc untempered, and the middle portionof the lift becomes toe hard and brittle for good work.

Finally, we do not claim vibrating bars with rollers of any kind, incombination with concave beds for the purpose of forming ellipticspring-plates; neither-do wc employ hollow rollers' (pertbrated) for thepurpose of filtering water upon the steel plates, as all of the above,in our opi11ion,arc of little value in forming or tempering plates.Consequently the nature of ourinvention consists in the construction andapplication of a double horizontal transverse adjustable former A andA2, having an ope-n back, B, (through which the plate or lift N istempered to any required hardness, in combination with a double convexbed A and A, which is also formed in two parts, horizontally adj usted,

l ll

and believe to be the manner and forthe purpose substantially as aboveset forth.

In testimony whereof, we hereunto subscribe om' names, in the presenceof two witnesses.

JAMES B. CLEVELAND. HENRY C. GUILDERSLEIN.

Witnesses J oHN A. BRODHEAD, J'AMEs I. 'MoLEAnn

